Typewriter copyholder



'Dec. H8 i923. 11,4?83441 A. S. M DOWELL TYPEWRITER COPYHOLDER Fil edMay 24. 1921 3 Sheets-Sheet 1 1 INVEN TOR. Mazaflflf/arel {Q ATTORNEYDec. 18,1923.

A. S. M DOWELL TYPEWRITER COPYHOLDER 3 Sheets-Sheet 2 Filed y 24. 1921EWENTOR.

% fi 6 a J A Mewdfinifiwid I BY 1Z5 A TTORNEY Dec. 118, 1923. 1,47%,344

A. S. M DOWELL TYPEWR I TER COPYHOLDER I 7 Filed May 24. 1921 3Sheets-Sheet 3 ATTORNEY Patented Dece l8,

QJFFECEO ANDREW S. MACDOVELL, OF ROCHESTER, NEW YORK.

TYPEVJBITEE COPYHOLDEB.

Application filed May 24, 1921. Serial No. 472,217.

T (M whom it may concern:

Be it known that T, ANDREW S. MAoDow- ELL, ica, residing Monroe andvented certain in Typewriter Copyholders,

following is a specification.

My invention a citizen of the United States of Amerat Rochester, in thecounty of State of New York, have innew and useful Improvements of whichthe relates to typewriter copyholders, and is in the nature of amodification of the construction illustrated in my application SerialNumber 869, .t31, filed March A principal object of the invention is toprovide of a continuously running with instrumentalities cont theoperating mo of the copyholder at will.

for connecting movable part an arrangement that permits the useoperating motor, rolled manually tor with the Still a further object ofthe improvement is to afford mechanism operated so as to actua ment ofthe copyholder its travel and at variab Still a further ob to afford anecoiiomi rangement for operati ment, or copy supporting me that can bereadily te the movable elein either direction of le speeds if desired.

ect of my invention is cal and effective ar ng the movable elember, thesame consisting of a vertically disposed rotary screw which is operativethe movable element so as to ele it, according to the direct the screw.

The invention ly connected with vate or lower ion of rotation of alsocomprehends certain other improved features and advantages, all.

of which will appear cl in conjunct the novel features lowingdescription,

accompanying drawings,

early from the folion with the being pointed out in the claims followingthe description.

In the drawings: Figure 1 form of typewriter.

Figure 2 is a rear holder.

Figure 3 is a secti of Figure 2,

is a plan vi cation of the invention to a conve ew showing theapplintional elevation of the copyonal view on line with the flexibleshaft removed.

Figure 4 is a side elevation of the motor and controlling mechanism.

F Figure 'ure 5 is an end elevation of the same. dis a view similar toFigure 4,

with one pair of clutch members in engagement with each other.

Figure 7 is a secti of Figure 2.

onal view on line Figure 8 is a sectional view on line 8-8 of Figure 2,and

Figure 9 is a sectional view on line 9-9 of Figure 7,

The invention may be applied to different types of copyholders,illustration and with showing a sible forms, I

and for convenience of the sole purpose of practical example of Variousposhave illustrated the type of copyholder which, embodies a stationaryframe or supp ort on which is arranged to her, which in the presentinstance constitutes the driven element that is movable in a verticalplane although it will be obvious to those skilled in the art that thedriven element need not necessarily support the copy and also,

may travel in some other direction than in a vertical plane.

Arranged at the top of the frame A is a bearing 6, and arranged at thebottom of said frame on a lateral support 0 is a beariiig d. Betweensaid bearings b and c is disposed the vertical which is rotated in aworm or screw C manner that will be described presently. The screw G isoperatively associated with the movable element B by means of a nut Dthat is carried by the copy supporting member B and travels therewithupwardly and downwardly on said screw a s the latter is operated in onedirection or the other.

The screw C is provided at its lower extremity with a flat sided annularrecess end portion 6 and an 7, while 9 is a socket carried by theflexible shaft E and cooperating with said flat sided end 6. The socketg is provided with an annular flange or rib h which engages said recessthus aftording a convenient detachable and interlocking connectionbetween the flexible shaft E and the screw C. The

flexible shaft E is rotated in either direction, and at variable speedsif desired by the mechanism that will now be set forth in detail.

The copyholder rear of the typewriter as 1, while the controllingmechanism is pref is arranged usually in the shown in Figure erablypositioned in juXta-relationship to the typewriter keyboard and thisdisposition of the parts is permitted by the flexible shaft E whichleads from the controlling mecha nism to the copyholder, as indicated byFig ure 1. Referring to Figure 4:, F designates an electric motorarranged beneath the typewriter table G, and fl is the motor shaft ordriving element which is journaled at its outer end in bearing H and hasfixed thereon the clutch members I, 1, preferably in the form offriction disks. The flexible shaft extends to a point between saidfriction disks 1, I, and has fixed thereon a clutch mem er preferably inthe form of a friction disk J, arranged to engage selectively the disksI and I. To accomplish this flexible shaft E, see Figure 5, is journaledin a bearing K carried by a pivoted bracket L, said bracket beingprovided with a controlling handle M which entencs through an opening inthe typewriter table and is readily accessible to the operator. A springN acts to retain the flexible shaft and the friction element J inneutral position as shown in Figure l l hen the handle M is thrown tothe right to engage disks J and I, as shown in Figure 6, the flexibleshaft and the copy supporting member are operated in one direction, andwhen the handle M is thrown to the left to engage disks J and I, saidparts will be operated in the opposite direction. ln some cases it maybe desired to vary the speed of travel of the copy supporting member,and this is accomplished by shifting the friction disk 5 la dially withreference to the centers of the friction disks l, 1, thereby changingthe gear ratio, as will be seen in Figrure To this end, the spindle U onwhich the handle M is mounted, is slid-able in bearings P and P, beingretained in normal position as illustrated in Figure 5 by the springs Qand Q. To effect a change of speed. of the copy supporting member, foroperating it faster or slower in either direction the iandle M is firstshifted forwardly or rearwardly of the typewriter table, referring to Fiure 1 thereby causin a longitudinal shifting of the spindle 0 beforeturning the handle to the right or left. "When the desired adjustment ofthe friction disk J is obtained to give the proper rate of travel, whichwill e determined by the operator through practice, the handle M isshifted to the right or left, bringing the friction disk J intoengagement with the selected disk I or I, and causing a rotation of theflexible shaft and upward or downward travel of the copy supportingmember as the case may be.

While I have described the iiivention with more particular reference toa specific embodiment, it may be modified in various ways, and thisapplication is intended to cover any changes or departures coming withinthe scope of my improvement or of the following claims.

I claim:

1. in a typewriter copyholder, the combination with a copy supportingmember movable vertically and adapted to support cop in a verticalplane, of means for operating the copy supporting member comprising adriven element, a continuously moving driving element, and manuallycontrolled means for operatively connecting the driven element with saidcontinuously running driving element at will.

2. In a typewriter copyholder, the combi nation with a copy supportingmember mov able vertically and adapted to support copy in a verticalplane, of means for operating the copy supporting member comprising adriven element, a continuously moving drivingelement, and manuallycontrolled means for operatively connecting the driven ele ment withsaid continuously running driving element will, said ast mentioned meansincluding devices whereby the driven element may be operated at variablespeeds while the driving element operates at a constant speed.

2-5. ln a typewriter copyholder, the combi nation with a copy supportingmember movable vertically and adapted to support copy in a verticalplane of means for operating the copy supporting member comprising adriven element, a continuously moving driving element, and manuallycontrolled means for operatively connecting the driven element with saidcontinuously running driving element at will, said last mentioned meansincluding devices whereby the driven element can be operated. in eitherof two oirections while the driving element travels continuously in onedirection.

1-. In a typewriter copyholder, the combination with a copy supportingmember movable vertically and adapted to support copy in a verticalplane, of means for operating the copy supporting member comprisingdriven element, driving element moving contini'lously in one oirection.and manually controlled means for operatively connecting the driving anddriven elements so as to op crate the latter at variable speeds and ineither of two directions.

5. In a typewri'er copyholder the combination with a copy supportingmember movable vertically and adapted to support copy in a verticalplane of means for operating the copy supporting member comprising acontinuously moving driving element, and manually controlled means foroperatively connecting said first mentioned element with saidcontinuously running driving element at will.

(3. In a typewriter copyholder, the combination with a copy supportingmember m0vable vertically and adapted to support copy in a verticalplane of means for operatingthe copy supporting member comprising aerating the copy supporting member comprising a continuously movingdriving element, and manually controlled means for operativelyconnecting said first mentioned element with said continuously runningdriving element at will, the vertically movable element being operableeither upwardly or downwardly while the driving element travelscontinuously in one direction.

8. In a typewriter copyholder, the combination with a copy supportingmember movable vertically and adapted to support copyin a verticalplane, of means for operating the copy supporting member comprising adriving element moving continuously in one direction, and manuallycontrolled means for operatively connecting the driving element and thevertically moving element so as to operate the latter at variable speedsand in either of two directions.

9. In a typewriter copyholder, the combination with a copy supportingmember movable vertically and adapted to support copy in a verticalplane, of means for operating the copy supporting member comprising acontinuously moving driving shaft, a pair of clutch members fixed on theshaft, a driven shaft operatively connected with the vertically in vableelement, and a clutch member carried by the driven shaft and movableinto engagement with either of the first mentioned clutch members.

10. In a typewriter copyholder, the combination with a copy supportingmember movable vertically and adapted to support copy in a verticalplane, of means for operating the copy supporting member comprising acontinuously moving driving shaft, a pair of clutch members fixed on theshaft, a flexible driven shaft operatively connected with the verticallymovable element, and a clutch member fixed on said flexible shaft, theflexible shaft and its clutch member being movable selectively intoengagement with the first mentioned clutch members.

11. In a typewriter copyholder, the combination with a copy supportingmember that is movable in a vertical plane for exposing lines of copysuccessively, of a vertically disposed screw operatively associated withthe copy supporting member for elevating and lowering it, and operatingmeans connected with said screw.

12. In a typewriter copyholder, the combination with a copy supportingmember that is movable in a vertical plane for exposing lines of copysuccessively, a vertically disposed rotary screw, a nut carried by thecopy supporting member and engaging the screw, and operating meansconnected with the screw for turning it in either direction.

13. In a typewriter copyholder, the combination with a copy supportingmember that is movable in a vertical plane for exposing lines of copysuccessively, of a vertically disposed screw operatively associated withthe copy supporting member, a continuously moving driving element, andmanually controlled means for operatively connecting the driving elementwith said screw at will and driving the screw in either direction.

14. In a typewriter copyholder, the combination with a copy supportingmember that is movable in a vertical plane for exposing lines of copysuccessively, of a rotary vertically disposed screw operativelyassociated with the copy supporting member, and a flexible shaftdetachably connected with the screw for turning the latter.

15. In a typewriter copyholder, the com bination with a copy supportingmember that is movable in avertical plane for exposing lines of copysuccessively, of a vertically disposed rotary screw operativelyassooiated with the copy supporting member and acting to raise or lowerthe same, a flexible shaft detachably connected with said screw, adriving shaft, a pair of clutch members fixed on the driving shaft, anda clutch member fixed on said flexible shaft and arranged between thefirst mentioned clutch members, said flexible shaft being bodily movableto bring its clutch member into engagement selectively with the clutchmembers on the driving shaft and at different radial positionsrelatively thereto so as to operate at varying speeds and in eitherdirection.-

16. In a typewriter copyholder, the com bination with a copy supportingmember movable in a vertical plane for exposing lines of copysuccessively, of a rotary vertically disposed screw operativelyassociated with the copysupporting member, a continuously moving drivingelement, and manually controlled means for operatively connecting thedriving element with said screw at will.

In witness whereof, I have hereunto signed my name.

ANDREI/V S. MACDQWELL.

